.middle > div {
    border: 1px solid gray;
}

/*-----------------------------公司介绍------------*/
.company + div {
    overflow: hidden;
}

.company > div {
    text-indent: 3em;
    font-family: "Arial Black";
    font-size: 15px;
    line-height: 30px;
    margin-bottom: 30px;
}

/*------------------lunbo--------------*/
.rotation {
    display: flex;
    text-align: center;
    overflow: hidden;
    animation: move 5s linear infinite;
}

@keyframes move {
    0% {
        margin-left: 0;
    }
    20% {
        margin-left: 200px;
    }
    40% {
        margin-left: 400px;
    }
    60% {
        margin-left: 200px;
    }
    80% {
        margin-left: 0;
    }
    100% {
        margin-left: -200px;
    }
}

.rotation img {
    width: 150px;
    height: 150px;
}

.rotation > div {
    margin-right: 10px;
}